Currently rtld_paths.h will #undef _PATH_ELF_HINTS in order to override this to the right value if included afterwards, but the other way round does not work as elf-hints.h tries to define an already-defined macro to a potentially different value. Thus, guard the definition here so that rtld_paths.h's definition continues to take precedence. Note that, although all in-tree uses of _PATH_ELF_HINTS have included rtld_paths.h already, pax-utils wants _PATH_ELF_HINTS from elf-hints.h and so we cannot just drop the define. In-tree uses must just continue to make sure that they include rtld_paths.h to get the right value for libcompat builds as is already required. Reviewed by: kib, brooks, jhb, imp Differential Revision: https://reviews.freebsd.org/D40918
55 lines
2.0 KiB
C
55 lines
2.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 1997 John D. Polstra.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _ELF_HINTS_H_
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#define _ELF_HINTS_H_
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/*
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* Hints file produced by ldconfig.
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*/
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struct elfhints_hdr {
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u_int32_t magic; /* Magic number */
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u_int32_t version; /* File version (1) */
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u_int32_t strtab; /* Offset of string table in file */
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u_int32_t strsize; /* Size of string table */
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u_int32_t dirlist; /* Offset of directory list in
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string table */
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u_int32_t dirlistlen; /* strlen(dirlist) */
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u_int32_t spare[26]; /* Room for expansion */
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};
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#define ELFHINTS_MAGIC 0x746e6845
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#ifndef _PATH_ELF_HINTS
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#define _PATH_ELF_HINTS "/var/run/ld-elf.so.hints"
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#endif
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#endif /* !_ELF_HINTS_H_ */
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